Hematology Correlates Flashcards
Heme precursor
Succinyl CoA (TCA intermediate) and Glycine (amino acid)
Energy source of RBC
Anaerobic glycolysis (net of 2 ATP)
Last stage of RBC with a nucleus
Orthochromic erythroblast
Baby RBCs; increase in hemolysis
Reticulocytes
Adult Hgb
Fetal Hgb
Adult Hgb: 2 alpha chains, 2 beta chains
Fetal Hgb: 2 aplha chains, 2 gamma chains
Transfers iron in the blood
Stores iron in the liver
Transfer: transferrin
Store: ferritin
Tissue macrophages. Bone, Liver, Skin, CNS, Lungs
Bone: osteoclast Liver: Kupffer cells Skin: histiocytes/Langerhans cells CNS: microglia Lungs: alveolar macrophages
Platelet adhesion
Platelet aggregation
Adhesion: Glycoprotein 1b and vWF
Aggregation: Glycoprotein IIb-IIIa and fibrinogen
Ig in primary response; largest
Ig in secondary response; smallest
Ig in secretion
Ig in allergies, parasitic
Ig in primary response; largest – IgM
Ig in secondary response; smallest – IgG
Ig in secretion – IgA
Ig in allergies, parasitic – IgE
MHC I, CD8
MHC II, CD4
MHC I, CD8 – T Killer cells
MHC II, CD4 – T helper cells
Patches of dilated endoplasmic reticulum that appear as sky blue cytoplasmic puddles seen in severe infection
Dohle bodies
Distinctive needle-like azurophilic granules found in myeloblasts seen in AML
Auer rods
Scattered macrophage with abundant wrinkles green blue cytoplasm seen in CML
Sea blue histiocytes
Small lymphocytes disrupted in the process of making smears seen in CLL
Smudge cells
Large cells with multiple nuclei or a single nucleus with multiple nuclear lobes in Hodgkin’s lymphoma
Reed Sternberg cells
Multi lobulated nuclei seen in Adult T cell Lymphoma
Clover leaf or flower cells
Destructive plasma cell tumors involving axial skeleton seen in Multiple Myeloma
Plasmacytoma
Neutrophils with only two nuclear lobes seen in Myelodysplastic syndrome
Pseudo Pelger Huet cells
Megakaryocytes with single nuclear lobes or multiple separate nuclei seen in MDS
Pawn-ball megakaryocytes
Small yellow-brown, brown or rust colored foci in the spleen during congestion
Gandy- Gamma Nodules
Most common type of Hodgkins Lymphoma
Worst and best prognosis types
Contains popcorn cells
Most common: Nodular sclerosis
Worst: lymphocyte- depleted
Best: lymphocyte- rich
Contains popcorn cells: lymphocyte-predominant
Most common form of NHL
Diffuse large B cell lymphoma
Translocation on chromosome 8 which present with starry sky pattern
Burkitt’s lymphoma
Biopsy of tumor reveal homogenous population of small lymphocytes with no centeroblasts and proliferation centers
Mantle cell lymphoma
Excess light or heavy chains along with complete immunoglobulin synthesized by neoplastic plasma cells
Bence Jones Proteins (Multiple Myeloma)
Most important monoclonal gammopathy usually presenting as tumorous masses scattered throughout the skeletal system
Multiple Myeloma
Small hyperchromatic RBC lacking central pallor
Spherocytes in Hereditary spherocytosis
Small dark nuclear remnants present in RBC of asplenic patients
Howell Jolly bodies
Membrane bound precipitates on denatures globin chains
Heinz body seen in G6PD deficiency
RBCs with damaged membranes due to removal of Heinz bodies by splenic macrophages seen in G6PD deficiency
Bite cells
RBCs shaped like curved blades
Sickle cells
Dehydrated RBCs with bull’s eye appearance seen in Sickle Cells Anemia and Thalassemia
Target dells (codocytes)
Fragmented RBCs also call helmet cells if cut in half associated with RBC trauma, DIC and HUS
Schistocytes
RBCs with spike associated with RBC trauma
Burr cells or Echinocytes
Triad of hemolytic anemias
Pallor
Jaundice
Splenomegaly
Intravascular vs Extravascular hemolysis
Extravascular hemolysis presents with splenomegaly
Intravascular hemolysis due to increases complement-mediated RBC lysis
Paroxysmal Nocturnal Hemoglobinuria
Hemolytic anemia seen in DIC, TTP-HUS, SLE and malignant hypertension
Microangiopathic Hemolytic anemia
Caused by trauma to RBCs in individuals with cardiac valve prostheses
Microangiopathic hemolytic anemia
Sites of hematopoiesis
Yolk sac, spleen, bone marrow (all bones and then membranous bones)